<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>页面输出用户信息</title>
</head>
<body>
    
</body>
<script>
let name = prompt('请输入姓名')
let age  = prompt('请输入年龄')
document.write('大家好，我叫${name},今年${age}')
</script>
</html>